Using this burner cap is easy. Just place it on the appropriate outer wok burner of your compatible Fisher & Paykel cooktop. When using, make sure the cooktop is clean and dry to ensure a good fit and proper performance. As for maintenance, after each use, let it cool down completely. Then, you can gently wipe it with a soft cloth. Avoid using abrasive cleaners as they may damage the sintered matt coating. If you're unsure if this cap fits your cooktop model, always check the model number and product code before making a purchase to avoid any compatibility issues.